When the awakened people present heard these three words, their faces showed shocked expressions.

Supersonic speed for bullets is basically casually supersound.

However, for the Awakened, it is not so easy.

In fact, if you want to fist supersonic, there is a very clever way, that is, sit on a subsonic plane and punch it, and the fist will be supersonic.

Of course, this statement is just a joke.

It is very difficult for the Awakened to break through the speed of sound by running.

However, if it's a fist, it's a lot easier.

Fang Yuan has now reached a running speed of 527 km/h, and if his fist can exert 3 times the speed, it is a steady supersonic speed.

However, it is difficult to say whether it can be achieved or not.

This is because these two traits may not work on fists, or the efficiency may not be the same as running.

The specific situation has to be determined through testing.

"Sonic boom punch, which literally means, punches out a sonic boom. Fang Yuan, you are responsible for explaining what a sonic boom is. Admiral Rhodes said by name.

"Why me?"

Fang Yuan was thinking about his own affairs, and for the time being, he didn't have the leisure to teach people tirelessly, but he could consider destroying people tirelessly.

"I heard that you did well in cultural classes, so hurry up." Admiral Rhodes urged.

"A sonic boom is the sound of an explosion when an object breaks through the sound barrier and squeezes air." Fang Yuan replied.

"Second question, let's explain the sound barrier." Admiral Rhodes continued.

"Sound barrier means that when the speed of an object approaches the speed of sound, it will encounter a strong resistance, causing the object to produce strong oscillations, resulting in velocity attenuation. In other words, if you want to break through the sound barrier, the strength of 340 m/s alone is not enough, and you have to exceed this value by a certain percentage. Fang Yuan continued to explain.

"Good. To sum up, if you want to hit a sonic boom, you need the speed of your fists to break through the sound barrier. And because the speed of your fist is 2 to 3 times the speed of running, when you run at a speed of 400 km/h, you will hopefully be able to train and make a sonic boom. Admiral Rhodes explained.

Fang Yuan pursed his lips and said, "It seems that there is only one person here who is speeding more than 400 km/h, right?" What's the use of calling so many people together? ”

As soon as this remark came out.

The expressions on the faces of the other 11 Awakened who participated in the selection were as if they had eaten something.

+20 rage.

+30 rage.

Each person contributed a sum of rage points, which added up to 320 points.

Fang Yuan showed a satisfied smile and said in his heart: That's right.

Then, unceremoniously start adding points, consume the 300 rage points, and continue to increase agility, maxing out the base agility to 193 points.

It's the speed that is soaring, and you can't stop.

"Okay, the principle of sonic boom, you all know, let's start practicing." After Admiral Rhodes finished speaking, he turned around and walked out of the field with his cane.

"That's it? What about the good teachings? Fang Yuan blinked, a little confused.

"The master leads the door, and the cultivation is personal. After telling you the principle, do you still have to grab your hand and tell you how to punch? Admiral Rhodes asked rhetorically.

"No need."

Fang Yuan was a little speechless, but he didn't continue to mess with him, and walked to the side to start practicing.

Admiral Rhodes still mentioned more: "Before punching, run out of the limit speed, and then punch, the success rate is higher." ”

"Got it."

Fang Yuan agreed, activated the "Lightning Speed" and "Wind Speed", burst out of the extreme speed, and then punched out.

There was no sonic boom.

I tried two more times, and there was still no sonic boom.

Fang Yuan walked back to the speed test booth, put the speed tester on his wrist, and tried two more punches.

After the fight, he came back and asked, "What is the speed of my fist?" ”

"Maximum speed 1033 km / h." Analyst Chen Likun replied.

"Why is it so slow? I'm running at 527 km/h. Fang Yuan frowned and felt very strange.

Chen Likun pulled out a lot of formulas and began to calculate and derive.

Finally concluded: "That...... According to calculations, the efficiency of the 'Lightning Speed' in the fist was not used to the extreme. ”

Fang Yuan thought about it carefully, clenched his fists fiercely, and said, "I know what's going on." ”

So, he walked out of the speed measurement booth again, condensed the energy of "lightning speed" on his arm, and then burst out violently.

Rumble!

A thunderclap of lightning erupted from his arm.

A punch comes out.

A violent resistance was felt on the fist, like a shock wave against the fist, and the fist shook slightly.

Fang Yuan's eyes stared, and he immediately knew that this was the sound barrier.

When the velocity of an object approaches the speed of sound, it will squeeze the air.

And these squeezed air will also form a reaction force, like an explosion, forming a shock wave, a shock fist.

The same principle applies to airplanes.

Aircraft technology was blocked by the sound barrier for a long time before it broke through the sound barrier.

Moreover, the plane cannot fly at a speed close to the speed of sound, and if it exceeds Mach 0.9 and does not break through Mach 1, the plane will vibrate violently and even cause an accident.

Mach is the unit of sound, and Mach 1 is equal to 340 m/s.

As a result, subsonic aircraft will all remain below Mach 0.9.

Fang Yuan's fist encountered a sound barrier, indicating that the speed of the punch was approaching 340 m/s.

Turning his head to look at analyst Chen Likun, he asked, "How is it?" What is the speed? ”

"The top speed is 336 m/s, but after reaching that speed, it suddenly drops a notch, and you hit the sound barrier. You have to break the sound barrier to break the speed of sound. However, with a strength of 340 m/s alone, it is impossible to break through the sound barrier, and it must be faster than this speed. Analyst Chen Likun replied.

Fang Yuan pinched his chin and thought about it.

Analyst Chen Likun added: "Fang Yuan, according to your ascension speed, no matter how hard you work, you should be able to break through the sound barrier." ”

"No, I don't want to work hard. I'm going to rub the sound barrier on the ground. ”

Fang Yuan walked to the front of the locker in the training ground, opened his cabinet, took out his schoolbag, and took out a star core inside.

When I traded with Davis Group not long ago, I actually got two star cores.

One is a lord-level lightning silver dragon core that contains "Lightning Speed" and "Advanced Agility Enhancement".

In addition, there is the Sky Predator Core that contains "Advanced Agility Enhancement".

Originally, the Sky Predator Star Core was used to guarantee the bottom.

In case the "Lightning Speed" is not successfully absorbed, it can also absorb the "Advanced Agility Enhancement" of the Sky Predator Star Core.

However, he later succeeded in absorbing the "Lightning Speed", so the remaining Sky Predator Star Core was put aside for the time being.

Now, it would be terrifying if you could successfully absorb the "Advanced Agility Enhancement" as well.

……

Note: The values for speed are calculated on the basis of the setting, not randomly. The algorithm for base speed is 10 for agility and then squared. 10 is a composite value of several air resistance coefficients, which is set to 10 for ease of calculation. The calculation method is self-consistent on the basis of setting.